A nut, flat on top and bottom having 6 flat sides. For items which have internal tapered or straight (parallel) pipe threads, specific electrical conduit size designation, and which when installed, provide a method of tightening to lock the connection, see locknut, electrical conduit. See also locknut, tube fitting. For items having a thickness (or height) exceeding two times the width across the flats, use post, electrical-mechanical equipment. (when height or thickness and/or width across the flats is designated as a tolerance dimension, the maximum dimension will be used to determine compliance.)
Classification: Copper screws, nuts, bolts, rivets, and other fasteners not threaded
NSN 6620-01-245-0184
NSN 6610-00-448-1264
NSN 5996-01-006-2324
NSN 6110-00-307-8480
NSN 6320-01-418-2611
NSN 6685-01-580-9640
NSN 6150-01-141-6014
NSN 6130-00-558-5844
NSN 5945-00-908-2812
NSN 5930-01-345-0230
NSN 5965-01-060-2558
NSN 6145-00-730-3933